baber/WOPTO huggingface dataset:
Patent GB-454012-A (GB)
Title: Improvements in electric signalling or controlling systems employing follow-up devices
IPC: G08C19/02
Filed: 1935-02-16
Abstract: 454,012. Electric signalling and control systems. ELECTROFLO METERS CO., Ltd., and WEY, R. J., Abbey Road, Park Royal, London. Feb. 16, 1935, No. 5091. [Class 40 (i)] In a remote control or follow-up device wherein primary and secondary members vary independent currents in magnitude or phase and the currents are compounded to produce a resultant voltage which controls thermionic or gas-filled valves for supplying the motive means of the secondary member, the currents are compounded by applying them to separate windings of a transformer. As shown, a plurality of primary currents I<1>, I<2> derived from variable resistances operable by primary members, are applied to independent windings A, B of a transformer P having a third winding C which carries the secondary current and two secondary windings which control thermionic valves V<1>, V<2>, the plate circuits of which control a reversible motor F which adjusts a rheostat A<1> for controlling the secondary current until balance is obtained. Normal bias for the valves is derived from resistances B<1>, B<2>. Instead of a motor with two field windings, the motor may be provided with two armature windings to facilitate rotation in opposite directions. A direct current supply which is interrupted by a continuously driven interrupter may be employed for the anode circuit supply. The normal grid bias for the valves may be derived from a D.C. supply or from a separate winding on the balancing transformer. One control valve only may be employed, Fig. 4 (not shown), the output circuit including a three-position relay for controlling the motor. In order to prevent out-of-balance voltages above a predetermined value being generated by the transformer, an additional winding, which is short-circuited by an impedance having non-linear characteristics, e.g. a metal rectifier, is provided on the transformer. Alarm relays may be provided in the anode and filament circuits of the valves to give an alarm or effect replacement in the event of failure.
Patent GB-1530863-A (GB)
Title: Band knife cutting apparatus with emergency stopping system
IPC: B26D7/22
Filed: 1977-02-08
Abstract: 1530863 Machinery safety devices K YONEDA 8 Feb 1977 [25 May 1976] 05091/77 Heading F2J A band knife cutting apparatus comprises a band knife 14 mounted on pulleys 11, 12, 13 and a safety device including an amplifier operatively associated with the band knife; relay means actuable by the amplifier in response to a predetermined increase in charge potential of the band knife, a motor 10 operatively connected to one of the pulleys and being adapted to be switched from an operative state by the relay means upon actuation thereof by the amplifier, a first brake B for braking the pulley 11 coupled to the motor and a second brake 20 for braking the band knife, the first and second brakes being operable to brake the pulley and band knife upon actuation of the relay means by the amplifier. The amplifier is electrically connected to a bearing 16 in contact with the band knife.
Patent GB-732786-A (GB)
Title: Improvements in and relating to the production of aromatic hydrocarbons comprising para-xylene
Inventor: TAYLOR ARTHUR WILLIAM CHARLES
IPC: C07C1/247
Filed: 1952-02-27
Abstract: Hydrocarbons comprising p-xylene are produced by condensing acetone with acetylene in the presence of potassium alkoxide derived from a monohydric alcohol of 4-9 carbon atoms, hydrolysing the product to 2,5-dimethylhex-3-yne-2,5-diol, hydrogenating to 2,5-dimethylhex-3 - ene - 2,5 - diol and/or 2,5 - dimethylhexane-2,5-diol, dehydrating in liquid phase at elevated temperature with phosphoric, sulphuric, hydrochloric or p-toluene sulphonic acid, zinc chloride or acetic anhydride preferably containing a small amount of sulphuric acid, to give 2,2,5,5-tetramethyl - 2,5 - dihydrofuran and/or 2,2,5,5-tetramethyl tetrahydrofuran, and contacting in the vapour phase at elevated temperature with an aromatization catalyst. Alkoxides used in the first stage are preferably derived from an alcohol immiscible or only slightly miscible with water, especially a secondary alcohol boiling above the boiling point of 3-methybut-1-yne-3-ol (104 DEG  C.) and below the boiling point of the dispersing agent employed in preparing the alkoxide. Cyclohexanol, 2-hexanol, 2-heptanol, 2-pentanol, and sec.-butanol are suitable.  Reaction between the alcohol and potassium hydroxide may be effected by refluxing in presence of a dispersing agent boiling above the boiling point of the alcohol to allow removal of excess alcohol and water by distillation.  Aromatic, hydroaromatic, and paraffinic hydrocarbons, e.g. xylenes, cumene, tert.-butyl benzene, trimethyl benzenes, decahydronaphthalene, petroleum fractions, and high-boiling ethers, e.g. ethylene glycol ethyl butyl ether, are suitable.  A suspension of the alkoxide in the dispersing agent is thus obtained.  2,5 - Dimethylhex - 3 - yne - 2,5 - diol is made by condensing acetone and acetylene at 0-20 DEG  C., preferably while maintaining a minimum of free acetone and using a molar ratio of acetone : acetylene between 1.7 and 2 : 1, and of alkoxide: acetone of at least 1 : 1, water then being added and the diol separated or recovered as a solution containing water, alcohol and dispersing agent.  Hydrogenation is preferably effected in liquid phase with metal catalysts, particularly foraminate or Raney nickel, copper or cobalt, to yield the hexene and/or hexane diols which are dehydrated to furan derivatives and the latter aromatized substantially as described in Specifications 702,360 and 702,473.
Patent GB-782759-A (GB)
Title: Improvements in or relating to derivatives of 1-amino-2-nitro-benzene-4-sulphonamide
IPC: C09B51/00
Filed: 1955-02-21
Abstract: The invention comprises dyes for acetate rayon of the formula: <FORM:0782759/IV (b)/1> where R1 is an aliphatic, cycloaliphatic, or araliphatic radical or a radical of the benzene, naphthalene, or hydronaphthalene series which radical R1 may be further substituted, R2 is hydrogen or an aliphatic radical of not more than 3 carbon atoms which may be further substituted, R3 is an aliphatic, cycloaliphatic or araliphatic radical which may be further substituted or a radical of the benzene series of the formula: <FORM:0782759/IV (b)/2> where t is hydrogen, methoxy, ethoxy, alkyl and/or halogen, u is a direct binding or oxygen, r is hydrogen or hydroxy, V is alkoxy which may contain hydroxy or alkoxy, and when R1 is not aliphatic, V may also be hydroxy, n is one or two, R3 is different from R1, and R4 is hydrogen or an aliphatic radical which may be further substituted, with the provision that no watersolubilizing groups are present and that R1 or R3 represents or contains a cyclic radical.  R1 and R2 may form together with N a heterocyclic ring, and in the case when R3 is a radical of the benzene series as defined above, V is only alkoxy which may contain hydroxy or alkoxy.  The products are made by reaction of a sulphonamide of the formula: <FORM:0782759/IV (b)/3> where X is chlorine or bromine, with an amine of the formula: <FORM:0782759/IV (b)/4> Mixtures of starting materials may be employed, and the amines may be mixed with other mono- or bi-nuclear cycloaliphatic or aromatic amines.  The reaction may be carried out in aqueous medium in presence of an acidbinding agent or excess of the amine.  In examples (1) 1-chloro-2-nitrobenzene-4-sulphonic acid phenylamide is reacted with cyclohexylamine; (2) 1-chloro-2-nitrobenzene-4-sulphonic acid - di - (21 - hydroxyethyl) - amide is reacted with cyclohexylamine; (3) 1-amino-4-[21-(211-methoxy) - ethoxy] - ethoxybenzene, is reacted with 1-chloro-2-nitrobenzene-4-sulphonic acid - phenylamide; (4) 1 - amino - 4 - (- 2 hydroxy) - ethoxy - benzene is reacted with 1-chloro - 2 - nitrobenzene - 4 - sulphophenylamide; (5) cyclohexylamine is condensed with a mixture of 1-chloro-2-nitrobenzene-4-sulphonic acid-phenylamide, dimethylamide and benzylamide.  A dyeing example using acetate rayon is given, and a number of alternative starting materials and combinations thereof are listed.
Patent GB-152697-A (GB)
Title: Smelting furnace heated by oil or gas
IPC: F27B3/00
Filed: 1918-03-25
Abstract: 152,697. Schmidt, K. March 25, 1918. Metallurgical furnaces. -In a gas or oil-fired smelting-furnace of the kind in which combustion is effected in a chamber a surrounding the lower end of a combined feed shaft and outlet flue b, the height of the chamber a is decreased from the outer to the inner periphery by sloping the floor or roof, or preferably both, as shown. The heating-gases are delivered to the chamber through tangentiallyarranged inlets c.
Patent GB-1528701-A (GB)
Title: Arrangement for storing handling and transporting elongate articles
IPC: B65D85/20
Filed: 1976-02-10
Abstract: 1528701 Packaging pipes RHEINISCHES ZINKWALZWERK GmbH & CO KG 10 Feb 1976 [23 Oct 1975] 05234/76 Heading B8C A bundle 2 of pipes 3 has the pipes arranged in two or more layers in a square grid pattern with open top, closed bottom cardboard containers 4, 5 enveloping each end of the bundle and held in position by one or more longitudinal tensioned bands 6. The bundles may be stacked on a pallet 1.
Patent GB-1020785-A (GB)
Title: Improvements in or relating to blinds
Inventor: PEGRUM RONALD LOUIS
IPC: E06B9/58
Filed: 1963-02-08
Abstract: 1,020,785. Roller blinds. ARTISTIC BLIND CO. Ltd. Feb. 10, 1964 [Feb. 8, 1963], No. 5254/63. Heading A4B. A roller blind 2 has along each side edge a continuous piping 3 of circular section and a similar piping 4 along its bottom edge, each piping 3 being slidably received in a retaining member 7 having an extruded aluminium outer channel 8 and an extruded synthetic resin inner channel 9. The roller 5 has a reduced width of barrel and layer spindles around which the piping is wound. A grooved extruded member 16 engages the piping 4 and when the blind is lowered fits into a trough-like casing 13 to exclude light, the casing 13 housing a pulley over which passes the operating cord 15.
Patent GB-177665-A (GB)
Title: Improvements in outriggers for boats, skiffs and the like
IPC: B63H16/06
Filed: 1921-02-16
Abstract: 177,665. Kitchen, A. E. Feb. 16, 1921. Rowing-apparatus.-An outrigged boat is provided with vertically adjustable rowlocks. A pair of stays a, b projecting substantially at rightangles to the side of the boat and a screwed pair c, d arranged at a considerable inclination support an horizontal bar portion e and also upright guide members f<1>, g<1> of grooved cross-section, a tifth stay h being attached to a stud f<2> on the forward member f<1>. The rowlock, comprising a three-sided rectangular frame i closed at the top by a flexible member s, slides within the guides f<1>, g<1>. Studs l on the rowlocks passing through slots formed in the bottom of the grooves of the uprights f<1>, g<1> carry pawls o which can be brought by screws p into engagement with racks n on the uprights to secure the rowlocks in their adjusted position.
Patent GB-551974-A (GB)
Title: Improvements in and relating to adjustment means for diamond and like boring tools
IPC: B23B29/034
Filed: 1942-04-17
Abstract: 551,974. Diamond &c. boring tools. JEARUM, F. C. April 17, 1942, No. 5136. [Class 124] [Also in Group XXII] An adjustment device for a diamond or like hard boring bar-tool comprises a bracket 12 having means for detachably clamping it to the boring bar 10 and carrying a micrometer 15 the spindle 15a of which has a terminal screw 15d releasably connected with a screw-threaded bore 11a in the rear of the shank of the boring tool 11 to adjust it backwards and forwards in an inclined tranverse hole 10a in the bar 10. The clamping means comprise a V-shaped bed 12a and a clamping foot 13 with a pivoted shoe 13a. The micrometer 15 is axially and rotatably displaceable in the bracket 12 by means of. a milled ring 15e and is locked in position by a set screw 16. Fine adjustment is then effected by a calibrated milled head 15b, a pad bolt 10b clamps the tool 11 in its adjusted working position, the spindle 15a is unscrewed, and the bracket removed from the bar. The bracket may be adapted to receiver micrometers at different angles corresponding to those of the tool 11, or it may be formed of two relatively movable parts to accommodate a variety of angles. Specification 458,194 is referred to.
Patent GB-1155534-A (GB)
Title: Magnetic Field Scanner with Inductive Voltage Divider and Spectrometer using same
Inventor: GUTOW RUSSEL STANLEY
IPC: H01J49/30
Filed: 1967-02-03
Abstract: 1,155,534. Automatic control of magnetic fields. VARIAN ASSOCIATES. Feb. 3, 1967 [Feb.18, 1966], No.5386/67. Heading G3R. In magnetic field scanner apparatus of the type in which a Hall effect crystal 24 is used to automatically stabilize the field at a desired level, the primary scan reference output voltage is derived from a decade transformer 28 which has a substantially linear variable output characteristic and comprises four sets of tapped windings 29---32 wound on a toroidal core. The secondary scan output voltage is supplied by the circuit portion 5 in which a potentiometer 44 is controlled by the shaft of the secondary scan generator 46 to sweep the magnetic field over the ranges between adjacent primary scan values. A constant current audio frequency generator 21 supplies the Hall crystal 24 and series-connected resistors 22, 23 respectively feeding the secondary and primary scan circuits. The outputs of the primary scan, secondary scan and Hall crystal circuits are series-connected in an error detector circuit 6 whose resultant output controls the magnetic field controller 3 through a circuit including a phase-sensitive detector 48 in which the amplified error signal is compared with the phase of a signal derived from the generator 21 to produce a D.C. output signal feeding the amplifier 7. The Hall crystal 24 is mounted in the field of the electromagnet 1 together with a spectrometer 11 whose output is fed to a recorder 12 as a function of time or of an output derived from the secondary field scan 5. The potentiometer 44 of the latter circuit may be replaced by a two-stage decade transformer similar to the transformer 28 and an embodiment incorporating this modification is described wherein the square of the magnetic field intensity is scanned by using two Hall crystals, the output of the first being used as Hall crystals, the output of the first being used as the input of the second whose output is fed to the error detector circuit 6, Fig.6 (not shown). This squared-field embodiment may be used with a cycloidal mass spectrometer, the primary field scan settings of the transformer 28 being calibrated directly in units of atomic mass. Two methods of calibration are described, Fig.7 (not shown). In another squared-field embodiment, Fig.4 (not shown) the output of the second Hall crystal is fed to the recorder to obtain a linear output of the spectrometer.
Patent GB-1025695-A (GB)
Title: Process for the production of spinnable polyesters
IPC: C08G63/85
Filed: 1963-02-11
Abstract: In the manufacture of polyethylene terephthalate by effecting an ester-interchange reaction between dimethyl terephthalate and ethylene glycol and thereafter polycondensing the product, there is used as a catalyst for the polyesterification reaction an organo-tin compound of formula <FORM:1025695/C3/1> in which R1 and R2 are alkyl, aryl, alkaryl or cycloalkyl groups and R3 and R4 are the radicals of semi-esters of aliphatic, aromatic or hydroaromatic dicarboxylic acids which are connected to the tin atom through the non-esterified carboxyl groups of the semi-esters. Specified radicals for R3 and R4 are those of maleic, adipic, pimelic or terephthalic acid esterified with C1 to C6 aliphatic alcohols.
Patent GB-1241525-A (GB)
Title: Methods of sealing glass parts
IPC: C03B23/217
Filed: 1970-02-05
Abstract: 1,241,525. Sealing glass parts. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 Feb., 1970 [8 Feb., 1969], No. 5513/70. Heading C1M. Glass parts (e.g. 1 and 2) are interconnected by edge-sealing, the edges being pre-heated and brought into contact, and sealed by passing electric current through the said edges, and the current being supplied to supply areas on the outside surfaces of the glass parts through an electric arc 12 struck between inert gas streams (supplied from nozzles 5) which impinge on the glass parts. The pre-heating may be to about 600 C., and the inert gas may be preionized by an auxiliary discharge. Parts 1 and 2 may be mounted so that they may be rotated relative to each other.
Patent GB-475956-A (GB)
Title: Improvements in or relating to steering gear
IPC: B62K5/02
Filed: 1935-02-24
Abstract: 475,956. Steering bath chairs and other vehicles. ETABLISSEMENTS DEVILLAINE FRERES. Feb. 24, 1936, No. 5552. Void. Convention date, Feb. 28, 1935. [Classes 79 (ii) and 136 (i)] A bath chair,toy, or other vehicle is steered by disconnecting the drive to a wheel on either side of the vehicle and applying a brake to the disconnected wheel, the clutches and brakes being controlled by a steering wheel or the like. In the construction shown applied to a vehicle having a castor wheel 2 and driving wheels 4, 5 driven by pedal gear 21, 22 and a driving shaft 9, each driving wheel is normally connected to the shaft 9 by a slidable clutch member 8 forced into engagement with a member 6 on the wheel by a spring 16. The clutches are disengaged by means of shafts 11 having cams 12 engaging rollers 13 on clutch levers 14 pivoted at 15. Each shaft 11 has an operating arm 18 and a short arm 10 connected to a brake band 7 on the wheel member 6. The arms 18 are connected to cables 19, 20 attached to drums 24, 25 loose on the steering shaft 26, each drum having a pin 28 or 29 adapted to be engaged by a lug 27 on the shaft. When the steering shaft is rotated in either direction the lug 27 bears against one of the pins 28, 29, thus rotating the corresponding drum and pulling one of the cables to disengage the clutch and apply the brake on one side of the vehicle to steer the vehicle to that side.
Patent GB-1340176-A (GB)
Title: Fluid control valves
IPC: F16K27/02
Filed: 1972-02-07
Abstract: 1340176 Valves BEHR-THOMSON DEHNSTOFFREGLER GmbH 7 Feb 1972 [26 Feb 1971] 5608/72 Heading F2V A valve seat 1 has a folded flange 6 to support the valve elements 7, 8 on one side of the seat. The elements 7 may be arms for supporting an abutment 9 for a restoring spring 8, the upper ends of the arms being engaged in apertured lugs 11 which may alternatively be arranged to extend upwardly from the flange (Fig. 3). In further modifications, the upper ends of the arms have apertures to receive upwardly extending lugs on the lower part of the flange, Fig. 4, as they are clamped between the folds of the flange as shown in Fig. 6 which may extend vertically instead of horizontally as shown. The flange itself may be apertured (Fig. 5) to receive the arms, or the arms may be an integral extension of the lower fold (Fig. 7). The valve may be operated by a thermostat 4.
Patent GB-549020-A (GB)
Title: Improvements in or relating to flexible couplings or links
IPC: F16F1/40
Filed: 1941-04-30
Abstract: 549,020. Links. ANDRE RUBBER CO., Ltd., T. B., and FRENCH, R. D. April 30, 1941. No. 5622. [Class 108 (iii)] A flexible coupling link comprises two U-shaped members the free ends of which are directed oppositely and are connected to end plates between which a number of rubber units are interposed. One U- shaped member has an eye C<SP>1</SP> welded to or formed with a bridge piece C through which pass bolts C<SP>1</SP> connected to an end plate D. The other U-shaped member has its plane at right-angles to the first and its bolts are connected to an end plate B. Between these end plates are located a number of units each comprising a rubber disc or pad F bonded to a metal plate E which the rubber completely envelops. The plates E have holes to receive the bolts, and the rubber discs have much larger holes. Each rubber unit may comprise two plates such as E. In a modification the eyes are welded to the bridge pieces and the outer ends of the bolts are screwed into their respective end plates which are so placed that a. bonded unit is disposed between each end plate and its adjacent bridge piece.
Patent GB-1122251-A (GB)
Title: Improvements in or relating to electronic time delay switching devices
IPC: H03K17/28
Filed: 1966-02-10
Abstract: 1,122,251. Transistor switching circuits. SOC. INDUSTRIELLE DE LIAISONS ELECTRIQUES. 10 Feb., 1966 [15 Oct., 1965], No. 5825/66. Heading H3T. In a time delay switching circuit pulses from a variable frequency oscillator (e.g. that using unijunction transistor T1) are used to discharge a pre-charged capacitor C2, the charge of which is monitored by a threshold circuit which maintains a relay energized until capacitor C2 has discharged below the threshold value. Capacitor C2 is preferably charged by closing contacts 10 so that each pulse from T1 turns on a transistor T2 which incrementally discharges C2 and thus feeds pulses of successively decreasing amplitude to a bi-stable circuit comprising transistors T4, T5. The output of the bi-stable circuit is amplified at T6, T7, rectified at D8 ... D11 and used to energize a relay R for a period of time until capacitor C2 has discharged sufficiently so as no longer to trigger the bi-stable circuit T4, T5.
Patent GB-463010-A (GB)
Title: An improved apparatus for measuring the force of a continuous or prolonged thrust such as that due to the explosion of a rocket
IPC: G01L5/13
Filed: 1936-02-27
Abstract: 463,010. Measuring forces. DAMBLANC, L. Feb. 27, 1936, No. 5946. Convention date, Feb. 28, 1935. ' [Class 106 (ii)] Comprises a construction of means for measuring the force of a continuous or prolonged thrust such as that due to the explosion or a rocket. The rocket is placed nose first into a combustion chamber constituted by a tube 1 open at the top and closed at the lower end 2 which is connected to the top of a spring 3 by means of a plate 6. The bottom of the spring 3 bears against an abutment 4 to which is secured a guide tube 7 braced to a base 5 by guys 9. Projecting from the top of the tube 1 is an arm 11 connected by a rod 12 to a pivoted washer 13 recording on a drum 14 driven by clockwork. A roof 15 may be provided for the recording apparatus. A friction ring 10 is provided to indicate the maximum displacement of the combustion chamber 1. The movement of the apparatus together with those of a near-by metronome may be photographed by a cinematograph camera.
Patent GB-1004911-A (GB)
Title: Hydrometallurgical oxidation of lead sulphides
IPC: C01G21/20
Filed: 1964-02-12
Abstract: Lead sulphide is converted to lead sulphate by oxidation in aqueous media characterized by the steps of:  dispersing finely divided PbS-bearing material containing Fe in an aqueous medium to form a slurry; providing in said slurry (NH4)2SO4 in amount equivalent to an (NH4)2SO4:  Pb molar ratio above 1.0; reacting said slurry at a temperature above 85 DEG  C. with a free O2-bearing gas under a positive pressure of O2; continuing said reaction to oxidize PbS to PbSO4; and separating the solid residue containing PbSO4 from the aqueous solution. Fe may be provided from an extraneous source, e.g. the metal itself, Fe2O3, pyrrhotite, FeSO4, Fe2(SO4)3 or Fe3O4 to raise the total Fe content of the PbS material to at least 5% of the Pb content.  The slurry contains, say, 10 to 50% solids, the PbS material being comminuted to particle size, e.g. <150 m .  The reaction carried out, e.g. in an autoclave at 85 DEG  to 125 DEG  C. and under partial pressure of O2, from the air, of 0.34 to 6.8 atmospheres takes about 2 hours. The residue is separated by a conventional technique.  Any dissolved metals, e.g. Zn and Cu in the solution may be recovered and the purified solution recycled. Specification 867,819 is referred to.